Q16 please answer all the questions

figure). Complete parts a and b below. A boat sails directly toward a 200-m skyscraper that stands on the edge of a harbor. The angular size of the building is the angle formed by lines from the top and bottom of the building to the observer (see 200 m a. Use a trigonometric equation to find an expression for the angle, 0, in terms of x. (Type an equation.) What is the rate of change of the angular size, -, when the boat is x = 400 m from the building? rad/m (Round to five decimal places as needed.) b. Graph - as a function of x and determine the point at which the angular size changes most rapidly. Choose the correct graph below. O A. O B. O c. OD. [0, 1000] by [ - 0.006,0] [0, 1000] by [0,0.006] [0, 1000] by [0,0.006] [0, 1000] by [ - 0.006,0] For what value of x is the angular size changing most rapidly? x =(Round to the nearest integer as needed.)